| abstract |
The present invention relates to an epoxy resin compositionnfor a fibre-reinforced composite material, which isnthermosetting resin composition where the glass transitionntemperature Tg of the cured material obtained by heating forn2 hours at 180°C is at least 150°C, and the modulus ofnrigidity G' R in the rubbery plateau in the temperature regionnabove the aforesaid Tg is no more than 10 MPa. n In accordance with the present invention, it is possible tonprovide a fibre-reinforced composite material which isnoutstanding in its resistance to hot-wet environmentalncondition, impact resistance, and strength characteristicsnsuch as tensile strength and compression strength, andnfurthermore it is possible to provide a thermosetting resinncomposition and a prepreg outstanding in terms of their peelnstrength to a honeycomb core. |